Mosquito spraying in Sudbury

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Monday, June 17, sunset – 11:30 PM

 The East Middlesex Mosquito Control Project is planning to use a truck mounted aerosol sprayer to control mosquito populations. The spray route will include many more roads than are listed below.

On Monday, June 17, 2024, spraying is scheduled for areas of Sudbury that are located in the vicinity of Belcher Drive, Hampshire Street, Grindstone Lane, Atkinson Lane, Intervale Road, and Barton Drive. If postponed, spraying will be rescheduled for the following week.

 The mosquito control product being used is Zenivex E4 (EPA Reg No. 2724.807), and it’s being applied at 1 oz per acre. Zenivex E4 is a non-ester pyrethroid and is classified by the EPA as a reduced risk pesticide. Mosquito control applications of Zenivex E4 do not pose a significant risk to people or their pets due to the low toxicity and the small amount used to control mosquitoes. As with any pesticide, people should minimize their exposure. If residents see a spray truck approaching, they are advised to go indoors for a few minutes while the spray dissipates. Residents are also advised to close windows.

Beekeepers do not need to take any special precautions since spraying begins after sunset. Zenivex E4 biodegrades rapidly and doesn’t build up in the environment.

 If you have any questions related to mosquitoes or mosquito control, contact the East Middlesex Mosquito Control Project at 781-899-5730. The spray schedule can be found at the project website at